Robot Entertainment announces that Orcs Must Die! 2 is now available on Steam, offering their sequel to last year's AIAS Strategy Game of the Year. Word is: "Orcs Must Die! 2 thrusts players and their friends back into battle against a terrifying mob of orcs and other monsters. With a redesigned spellbook, players will have a broader range of options to build a deadly arsenal of defenses. Investing hard-earned skulls in an enormous new upgrade system will allow players to cater to their favorite methods of burning, grinding, tossing, or dismembering orcs." A playable demo was released last week, and here's more, including a feature list:

Orcs Must Die! 2 begins days after the ending of the original game. With the rifts closed and the magical Order dead, the War Mage finds himself suddenly thrust into a new battle against the mindless orc mob. He has a powerful, if questionable, new companion in the Sorceress, an ex-War Mage responsible for the destruction of the Order.Orcs Must Die! 2 Features:

Co-Op! - Play as the War Mage, the headstrong hero who charges into danger, or play as the more strategic Sorceress who keeps the mob at bay with mind-control and magic.

Story-based Campaign – Pick up where the original game left off with a brand new story-based campaign that you can play in Single-Player or Co-Op!

Endless Mode - Play alone or join a friend to put your skills to the test against endless waves of increasingly difficult enemies.

Classic Mode - Steam players who own the original Orcs Must Die! will automatically unlock co-op versions of 10 fan-favorite levels from the original game featuring new enemies!

Over 20 Deadly Enemies - Face an army of vile new creatures like Earth Elementals, Trolls, and Bile Bats. And they’ve brought all of your favorite trap-fodder from the original Orcs Must Die! along with them!

More than 50 Traps, Weapons, and Guardians – Choose from an enormous armory of new and classic defenses, including an all new assortment of magical trinkets.

Massive Upgrade System – With more than 225 persistent trap and weapon upgrades to unlock, you can build an arsenal perfectly suited to your slaying style.

JohnBirshire wrote on Jul 31, 2012, 02:10:I really question the sanity of this developer after finding myself not even able to remap the keys without using third party software in the first game. Uh der der...PC Gaming 101 fail.

But is the minimap big enough for you? That's what we're dying to know...